Window-screen.



F. E. SGHOENBERG.

WINDOW SCREEN.

APPLICATION FILED AUG. 4, 1913.

Patented Apr. 7, 1914.

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FRIEDRICH E. SCHOENBERG, OF ST. LOUIS, MISSOURI.

WINDOW-SCREEN.

Specification of Letters Patent.

Patented Apr. 7, 1014.

Application filed August 4, 1913. Serial No. 782,835.

'1 '0 all whom it may concern:

Be it known that I, Fnnnnrorr E. SoHoEN- BERG, a citizen of the United States of America, and a resident of the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in \Vindow-Screens, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to a window screen and more particularly to a corner fastening for the frame members of a window screen.

This invention is an improvement on the window screen shown in Patent No. 929251, issued to me July 27, 1909, and the object of the present invention is to provide strong and simple detachable connections for joining the framemembers at the corners of the screen, so that the screen frame members may be. easily taken apart and reduced in length to produce a smaller frame to fit the window to which the screen is to be applied.

Figure I is a view showing one corner of a screen embodying the features of my invention. Fig. II is a view showing the frame members separated from each other. Fig. III is an enlarged transverse section taken on the line IIIIII, Fig. I. Fig. IV isan enlarged transverse section taken on the line IVIV, Fig. I.

In the accompanyin drawings: A designates frame pieces preferably of metal, each of which comprises a back member 1, an inner box member 2 and an outer box member 3, all of said parts being integrally connected together. The inner and outer box members are spaced apart to provide a longitudinal groove 4. between them. Angular reinforcing members 5 and 6 are inserted in the box members 2 and 3 at the corners of the frame. The parts so far described are quite similar to the corresponding frame parts shown in my prior patent referred to, but it is to be understood that the angular corner pieces 5 and 6 are not permanently secured to the frame pieces A as in said patent hereinbefore referred to.

7 designates a sheet of screen cloth having its margins arranged "in the ooves 4, and 8 designates retainerstrips lnserted in the grooves 4 to secure the screen cloth. The .retainer strips S'are detachably secured to the frame bars by nails 9 passing through the inner box members 2, see Fig. IV. The

retainer strips 8 terminate at a distance from the ends of the frame pieces A, and angular corner pieces 10 are inserted in the ends of the grooves 4 at the corners of the frame. A corner piece 10 secures the screen cloth at each corner of the frame and constitutes a removable connection for the frame pieces A. i 11 designates threaded openings forme in the corner piece 10 for the reception of screws 12 which pass through the back memhere 1 of the frame A and detachably se-' cured to the corner piece in the adjacent ends of the grooves to the said back piece 1.

In assembling the screen structure the angular reinforcing corner pieces 5' and 6 are inserted into the box members 2 and 3 of one of the frame pieces A, and another frame piece A is then slipped onto the extended arms of said corner pieces 5 and 6. Although these corner pieces are not attached to the frame pieces however, they reinforce the screen frame and serve as means for alining the frame pieces of the screen frame. After the corner pieces 5 and 6 are applied to the frame pieces A, the margins of the screen cloth are inserted into the grooves 4 and secured by the retainer strips 8. The angular corner connections 10 are then placed in the grooves 4 to secure the screen cloth and thereafter the screws 12 are applied to the corner connection 10 by inserting them through the frame pieces A. It will be noted that the frame pieces A are firmly secured together by the corner connections 10, and that inasmuch as these connections are detachable, they may be removed to permit the separation of the frame pieces A for the purpose of lessening the length of the latter.

When a previously constructed screen made in accordance with my invent-ion is found to be too large for a window opening in which it is desired to use such screen, the procedure is as follows: The angular corner pieces 10 and the strips 8 are first removed from the grooves 4 in the frame pieces A. This removal is readily accomplished by withdrawing the screws 12 holding the corner pieces and the nails 9 holding the strips. The screen cloth may then be separated from the screen frame and the frame pieces separated from each other, this separation incurring only the Withdrawal of the frame pieces from the angular corner pieces 5 and 6. Then to reduce the size of the screen, it is only necessary to reduce the length of the frame pieces A by cutting portions therefrom and forming new screw holes in the frame pieces for the reception of the screws 12. The size of the screen cloth is then reduced after which the parts are again assembled as originally and screen is ready for use.

I claim 1. A screen structure comprising frame pieces, each' having a longitudinal groove, a sheet of screen cloth having its margins detachably fastened in said grooves, re-

tainer strips arranged in said grooves to secure the screen cloth, said retainer strips terminating near the corners of the screen structure, and an angular corner piece inserted in the adjacent ends of said grooves to retain the screen cloth therein and, to connect said frame pieces and detachably secured to the latter.

2. A screen structure comprising frame pieces, each having a longitudinal groove, a sheet of screen cloth having its margins detachably fastened in said grooves, retainer strips arranged in said grooves to secure the screen cloth, said retainer strips terminating near the corners of the screen structure, and an angular corner piece removably fastened in said grooves to retain the screen cloth therein and to detachably connect said frame pieces.

3. A screen structure comprising frame pieces, each having a longitudinal groove, angular reinforcing members removably fitted to said frame pieces, a sheet of screen cloth having its margins arranged in said grooves, retainer strips detachably fastened in said grooves to secure the screen cloth,

saidretainer strips terminating near the corners of the screen structure, and an angular corner piece inserted in the adjacent ends of said grooves to retain the screen cloth therein and to connect said frame pieces and detachably secured to the latter.

4. A screen structure comprising frame pieces each having a longitudinal groove and a box member, an angular reinforcing member inserted in the box members of adjoining frame pieces, a sheet of screen cloth having its margins arranged in said grooves, retainer strips detachably fastened in said grooves to secure the screen cloth, an angular corner piece inserted in the adjacent, ends of said grooves to secure the screen cloth, and screws detachably connecting 831d.

angular corner piece to said frame pieces.

5. A screen structure comprising frame pieces each formed with an inner box member and an outer box member spaced-apart so as to provide a groove between them, angular reinforcing members inserted in said box members of adjoining frame pieces, said angular reinforcing members being removably fitted to said frame pieces, a sheet of screen cloth having-"its margins arranged in said grooves removable retainer strips detachably fastened in said grooves to secure I the screen cloth, an angular corner piece inserted in said grooves to secure the screen, and screws detachably connecting said corner piece to said frame pieces.

FREDRIOH E. SCHOENBERG.

In the presence of V. PARKER, A. LANNAHAN. 

